Lifetime fluorescence apparatus for clinical investigations of tissues

Laura Marcu, Qiyin Fang, Thanassis Papaioannou, Javier A. Jo, Russel Vaitha, Kumar Shastry

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We report on the design, development, and performance of a versatile and mobile fiber-optic based time-resolved fluorescence apparatus for in-vivo spectroscopy of biological tissues. The apparatus is of modular design which allows for facile interfacing with different pulsed light sources and fiber-optic probes. Main features of the apparatus include: 1) fast acquisition of fluorescence decays with high temporal resolution (0.3 ns) for a broad range of emission wavelengths (300 to 850 nm) and lifetimes (0.3 ns to ms), 2) near real time analysis of fluorescence decays via a Laguerre deconvolution technique, and 3) compatibility with the clinical environment (endoscopic procedures or other intraoperative uses). The apparatus is currently employed for in-vivo studies of diseased tissues (cardiovascular and oncological applications).

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsG.A. Wagnieres
Number of pages7
StatePublished - 2003
Externally publishedYes
EventDiagnostic Optical Spectroscopy in Biomedicine II - Munich, Germany
Duration: Jun 24 2003Jun 25 2003


OtherDiagnostic Optical Spectroscopy in Biomedicine II


  • Arterial diseases
  • Fiberoptic probes
  • Intraoperative diagnostics
  • Time-resolved fluorescence spectroscopy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


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